Knoldus Blogs

Liftweb JSON serialization and deserialization using Scala

May 18, 2012May 18, 2012Agile, Java, Studio-Scala, WebJSON, lift, scala

Reading Time: 2 minutes We are working on a Scala project using Play framework. We had written the Serializers and Deserialzers for parsing the JSON data that contains different data types like ObjectId , Scala Enumeration etc. We are using net.liftweb.json for writing and parsing the JSON data. We were having the JSON looks like as : [{“id”:1,”school”:”Cambridge”,”year”:{“name”:”FirstYear”},”major”:”Science”,”degree”:{“name”:”Bachelor’s”},”Date”:”01/05/2011″}] The year field here is an scala enumeration and the Date Continue Reading

Using GridFS within Scala to store large files in MongoDB

April 27, 2012April 27, 2012Cloud, Studio-Scala, WebGridFS, MongoDB, scala

Reading Time: < 1 minute GridFS is a specification for storing large files in MongoDB. Some of the features of GridFS are : * GridFS tends to handle large numbers of files better than many file systems. * Query Support is good. * If you have certain files that change a lot then it makes sense to store them in GridFS so you can modify them in one place and Continue Reading

Deploying the Play 2.0 application on Heroku

April 2, 2012April 2, 2012Cloud, Studio-Scala, WebHeroku, play, scala

Reading Time: 2 minutes We are working on a project using Play freamework with Scala programming language. Here we’ll discuss about the deployment of the play application on Heroku. This is a very straightforward process. You just have need to follow some simple steps and your application will be on Heroku in minutes. 1. Heroku needs a file named ‘Procfile‘ for each application to be deployed on it. Procfile Continue Reading

Integrating Twitter Bootstrap with Play 2.0 using Scala

March 22, 2012Studio-Scala, Web

Reading Time: < 1 minute We spent more than a few hours in getting the boostrapping right for Play 2.0 RC3 and twitter bootstrap. Following is a summary of steps we followed and some pitfalls that we encountered. For starters, you can start by having a look to the sample play application for a todo list. Here we are going to discuss about the twitter bootstrap integration using ‘Build.scala‘ file. Continue Reading

Google Web Toolkit (GWT) : Your first step !

January 21, 2012January 21, 2012Java, WebGWT

Reading Time: 3 minutes Google Web Toolkit (GWT) is a development toolkit for building and optimizing complex browser-based applications. It is an open-source, Java-based framework for creating Ajax web applications. It is created and used by Google. With GWT, you can develop and debug AJAX applications in the Java language using the Java development tools of your choice. When you deploy your application to production, the GWT compiler translates Continue Reading

Capsules for recovering Scala fever.

December 27, 2011January 23, 2012News, Studio-Scala, Webscala

Reading Time: 2 minutes Scala is a multi-paradigm programming language that combines the features of object-oriented programming and functional programming. The word “Scala” refers to “Sca(Scalable)+la(Language)” i.e designed to grow with the demands of its users. Scala runs on the Java Virtual Machine. Here We’ll discuss about some of the basic concepts in Scala that make it distinct from other programming languages.Let us start with some of the following: Continue Reading

Getting Started with Lift web framework : Your first step…!

November 3, 2011Web

Reading Time: 2 minutes Lift is a sophisticated web development framework that runs inside a Java web container & uses the Scala programming language.Lift removes a lot of the burdens that other frameworks place on developers by mixing together the best ideas in the marketplace today & aims to make building real-time, highly interactive, and amazingly scalable applications.Here we are going to introduce you with the Lift web framework Continue Reading

Create web application menus using the Lift web framework

September 30, 2011Studio-Scala, Weblift

Reading Time: < 1 minute Lift is a powerful & secure web framework having elegant features and also stresses the importance of security, maintainability, scalability and performance. Lift applications are written in Scala. Here we will discuss about creating the menus in Lift. These are the approaches to create a menu: Define the url names and routes directly in Boot.scala. Create the seperate Singleton for defining menu items. Let us see Continue Reading

Google Apps Script And Getting Site Context

July 31, 2011Java, WebGoogle Apps, Google Apps Scrpit

Reading Time: 2 minutes Google Script UI services enables to create rich UI in Google Sites. There is a bug where there is no way to find out directly where Google Apps Script is embedded in Sites. If you are faced with similar dilemma and need a workaround read on. This a critical issue when a script intended to be executed for multiple sites. In our case the requirement Continue Reading